Skandapurana 1.4.18.5

1.4.18.5

aśvamāruhya śailābhaṃ harimādravat..
paṃcayojanapragrīvamuṣṭramāsthāya jaṃbhakaḥ.. 20.5 ..

[One] rushed against Hari having mounted a horse resembling a mountain; / Jambhaka, having mounted a camel with a neck five yojanas long;